Window lift



Aug. 19 1926. 1,595,499 1 v i 9 J. BIRK I WINDOW LIFT Filed March s. 1923 2 Sheets-Sheet i INVENTORQ 10/7/7 DI'IK BY j? NEX' Aug. 10 1926.

J. BlRK WINDOW LIFT 2 Sheets-Sheet 2 Filed March 5, 1923 INVENTOR.

' Jo/mB/f/f BY a 'ATT EY' Patented Aug. 19, 1926.

UNITED STATES. PATEhl'l' OFF-,lfiE.

JOHN BIRK, OF TOLEDO, OHIO,:ASSIGNOR TO THE \VILLYS-OVERLAND COMPANY, 0 TOLEDQ, OHIO, A CORPORATION OF OHIO.

WINDOW LIFT.

Application filed March 3,. 1923.

This invention relates to improvements in window lifts, being intended primarily for a'p ilication to motor vehicles. j

One object of the invention is the provision of a device .ofthis character which is adapted to be entirely assembled before being. applied to the door or. window frame, that is, one in which-the entire mechanism is mounted upon a single baseor support. This baseorsupport also.- has, the further function of bracing'the door or window to which it isapplied.

Another object of provision of-a window lift which will be capable ofv quick and easy installation.

A further object is the-provision of simplified'mechanism for automatically holding theslid-able window in various positions.

therobjects, and objects relating to de 1 tails of construction and economies of manufacture, .will appear as I proceed with the description of that embodiment of the invention, which, for the purposes of the pres ent application, I have illustrated in the accompanying drawings, in which Flgure I is a side, elevational view of an automobile door embodying one form of my improved window lift. I

Figzll is a vertical, sectional view taken substantially on the line IIII, Fig. I. i

Fig. 111 is a sectional view takensubstantially on the line TIIIII, Fig. I, and showing my automatic latch mechanism indetail.

Fig. IV is a perspective view of a dog comprising a part ofthe latch mechanism.

Fig. V is adetail view of the latchmechanism, taken partly in section upon the line VV, Fig. III.

Fig. V1 is an-elevatio-nal view similar to Fig. I, but showing a modified: form of the invention 7 Fig. VII is a vertical, sectional view taken substantially on the line V'II-VII, Fig.

'VI, and

Fig; VIII is; a detail elevational view of the lift mechanism illustrated in Fig. VI,

viewed from therear-L- ways 1-1, in -whichis adapted: to slide verti- 'p'ane-bjf f'glass 12 upon the bottom 'the invention is theed ametal ehanne1 .13-.i

Serial No. 622,504.

unetallic bar or rail 18 which bridges the space between the stiles 10, bein secured to the same preferably by means or screws 18, thus forming a rigid brace for the door. Near. one end of. therail 18 there is provided an opening within which is journaled. a, pivot 19. A washer 20 surrounds the pivot at the. rear of the rail 18 and serves to space the lever 17 therefrom. The pivot andlever are provided with interengaging flattened surfaces in order to provide against relative rotation, and the, lever is retained upon the pivot by means ofa nut 21.

A. disc 22provided with a central opening for the reception of the pivot, is secured to the bar 18 by any suitable means, as by screws 23; This disc has spaced notches 24 extending either partially or entirely around its peri hery. Thenotches are intended for the reception of projection 25 .on the outer endof a radially arranged dog 26.

A; cup-shaped casing 27 is rigidly mounted at its center upon the pivot 19, and is of a size to rotate freely around the disc 22, its edge bearing; upon the rail 18. At one point in its periphery, the casing 27 is cut away to provide a guide 28 for the outer end of the dog 26.- In the side of the casing there is formed a slot 29 constituting a guide fora lateral projection 30 upon the dog. The dog is-preferably provided-with a pair of grooves. 31 for positioning one end of a coil spring 32, the other endof which bears againstthe periphery of the casing 27, being held in place by an internally extending. boss 33,

of the casin with a blunt too'l.

Between. the casing27' and'thecheaded.

forward end of the pivot 19, a hit-116116 34:

with a disc- 35; fixed thereto, are. freely rotatable; Thediscf35 is cut awayonone side.

with a.V-shaped-gro0ve- 36 for the reception of the projection 30-, the; sides, of the groove constituting cam-- snnfaces; adapted to force the.idog'xoiltward when the-lia-ndlltt 34 plate normally in such position as to permit the projection 30 to rest in the bottom ot the .V-shaped groove 36, I provide a small coil spring 3? which rests oartly in an arcurte slot 38 in the plate 35, and partly in an arcuate pocket 39 formed in the casing 27.

The lever 1'? may be conveniently formed in the shape of a bell crank having one arm 40 extending downwardly. At the end of this arm I prefer to pivot a link 11, to the opposite end of which is secured a counteralance spring 12, the opposite end of the spring being mounted upon a hook-shaped projection 48 on the bar 18. The linlr 11 1s bow-shaped in order to clear the latch mechanism. It will be obvious, however, that it may be dispensed with entirely, if the arm l0 of the lever is lengthened somewhat.

O326mton.-Assuming that the window 12 is in any adjusted position, with the projection 25 ot the dog 26 resting in one of the notches es in the periphery of the disc and assuming that it is desired to move the window to some other position of adjustment, the operator grasps the handle 3&- and revolves it in one direction or the other, depending upon whether he desires to move the window toward open or closed position. The first effect of the revolution of the handle 34c is to cause one side of the V-shaped groove 36 to exert a camming action upon the projection 30 of the dog, thus forcing the dog in an outward direction radially against the pressure of coring 32, thereby disengaging the projection 25 on the dog from the notch 24 in which it had been resting. The extent of the outward motion of the dog is limited by the end of slot 29 in the casing 27. Further movement of the handle then produces bodily motion of the dog 26 in a circular path, carrying with it the casing 2'? and rotating the pivot 19 to which the casing is attached. The lever 17 being fined upon the inner end of the pivot 19, swings through nearly the same angle as the handle 34: ant causes the roller 16 to run upon the channel 13 or flange 15, as the case may be, to elevate or lower the window. When the operator releases the handle 3a, the spring causes the dog 26 to move inwardly to engage in one of the notches 24, or it the projection 25 noes not happen to be opposite a notch 24, the window will move down slightly by gravity until the dog 26 is in proper position to engage the nearest notch.

It will be observed that the mechanism, whose operation has just been described, is entirely automatic and quite simple in its nature. Furthermore, it is so designed as to permit the use of stamping for nearly all or" its constituent parts.

The mechanical principles embodied in the modification illustrated in Figs. VI, VII and VIII, are shown and described in Pate ent No. 1,419,937, issued June 20, 1922 to J. 1). Lawrence, et al. So far as this modification is concerned, my invention relates principally to the mounting of the mechanism. The parts which are common to this modification, and to that above described, are similarly numbered. In Fig. VI, the transverse board or rail in which the door lock 50 is mounted, which is commonly known as the locl:-boarcl, is shown at 51. This board is notched upwardly from the bottom edge in order to accommodate a por tion or" the litt mechanism. One edge of the notch appears at in Fig. VI. A metal plate- 58 is secured at one end to the loclo board over the notch 52, and at the other in Fig. VI. The casing 5d contains gearing- {not shown) for transmitting motion from a crank to a short shaft 57 Will The latter is connnected by means or a universal jointbS, with one end of a screw 59 which runs through a nut 60 journaled by means of trunnions 61 mounted inthe lifting lever 62 and in a small bracket 63 secured to the heel: of the lever as shown in Fig. V1. Near the upper end of the plate 3 a short band of metal 6 1 is struck inwardly :trom the plate for the reception of "rig a triangular base riveted or other-- the upper end of a counterbalance spring 65,

the lower end of which is hooked into a notch 66 in the lever 62.

The lever is pivotally mounted at 67 u on the unde side of the plate 53 in a poate the ends of that plate.

si on intern The mounting or" the lever therefore, as in the case or" the first described modification, is firm and secure as compared with structures in which the lever is mounted upon a bracket extending toward the middle of the door from one of the stiles and secured to the door only at its base.

It will be obse ved that when the mechanism is in position upon a door, the spring 65, the casing 54 and a considerable portion of the screw 59 are hidden from view and protected by the plate 53. This constitutes one of the advantages or" my construction, in addition to the ease of assembly and installation, the latter advantages being present also in the first described modification.

pivot and carrying means adapted to slide said dog outwardly at the beginning of motion of the handle in either direction and thereafter to move the dog bodily, said dog having a portion adapted when at the inner limit of its radial motion, to engage the notches in said notched disc, and resilient means tending to force the dog inwardly.

2. In combination, a pivot, a window lifting lever fiXe'd thereon, a disc concentric with said pivot, provided with notches in its periphery, said disc being adapted to be secured to a Window frame, a casing fixed to said pivot and surrounding said disc, a dog slidable in said casing, a spring within the casing arranged to press against the periph ery thereof and tending to force said dog into said notches, a handle loosely mounted on said pivot and provided with means adapted upon actuation of the handle in either direction, to first slide said dog out- War'dly to clear the notches, and thereafter to rotate said pivot through the intermediacy of the dog and casing.

3. In a locking mechanism for a window lift, a frame, a pivot member journaled upon the frame, a lifting lever connected with said pivot member, a notched plate secured to the frame, a casing mounted upon and rotatable with said pivot member, a dog within the casing having a lateral projection adapted to engage said plate within said notches and having another projection extending through a slot in the wall of the casing, a handle for rotating said pivot member, and means upon the pivot member for moving said dog to release position.

4. In a locking mechanism for a window lift, a frame, a pivot member journaled upon the frame, a lifting lever connected with said pivot member, a notched plate secured to the frame, a casing mounted upon and rotatable with said pivot member, a dog within the casing having a lateral projection adapted to engage said plate within said notches, operating means for said pivoted'member, and means connected therewith adapted to move said dog to release position upon initial movement of the operating means. a

5. In a locking mechanism for a window lift, aframe, apivot member j ournaled upon the frame, a lifting lever connected with said pivot member, a disc secured to the frame and having a plurality of peripheral notches formed therein, a 'dog slidab'le at one sideof the disc and having a lateral portion adapted to extend into the notches thereof, operating means for said pivot member, and means connected therewith for moving the dog to release position.

6. In a locking mechanism for a window lift, a frame, a pivot member ournaled upon the frame, a lifting lever connected with said pivot member, a disc secured to the frame and having notches in its periphery, a 'dog disposed at one side of the disc and having a lateral portion adapted to project into the notches of the disc, means carried by the pivot member for moving the dog outwardly to release position, and a handle for operating the pivot member.

7. In a locking mechanism for a window lift, a f ame, a pivot member journaled upon the frame, a lifting lever connected with said pivot member, a disc secured to the frame and having notches in its periphery,

a dog disposed at one side of the disc and having a lateral portion adapted to project into the notches of the disc, a casing for the dog having a slot for receiving a projecting portion thereof, means for operating said pivotal member, and means connected there with for engaging the projecting portion of the dog and adapted to move said dog to release position.

8. In a locking mechanism for a window lift, a frame, a pivot member journaled upon the frame, a lifting lever connected with said pivot member, a disc secured to the frame and having notches in its periphery, a dog disposed at one side of the disc and having a lateral portion adapted to project into the notches thereof, a casing for the dog having a slot for receiving a projecting portion thereof, a spring within the housing for returning the dog to latching position, a handle for rotating said pivoted member, and means connected with the handle adapted to engage the projecting portion of the dog to move said dog to release position.

In testimony whereof, I afli-X my signature.

JOHN BIRK. 

